Could any one please tell me what kind of transofrmer laminations, wire, bobbins and isolation is required to build a main transformer for SE valve amplifier?And where to order?
Thanks in advance
Thanks in advance
Hi Baikostov. A power supply, even for a tube amp, is still a power supply and you really don't have to make weird things. What kind of amplifier are you thinking to build? If it uses a EL84 or EL86 I would go with an isolation trafo, 230 to 230VAC, which rectified (with SS) and some decoupling will give some nice B+.
Erik
Erik
Hi Erik.The project type is Loftin-White and the schematic is:http://www.geocities.com/dreamsdestroyer/6C4C_cap.gif
Hi Baikostov
I think the best place to ask this is at the thread where this schematic comes from. There are already some very experienced people around there, you make a bigger chance in getting answers to your questions.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=82432
As for the parts, I would go with a assembled trafo. I have read that it is difficult to source steel...and from what I understand you have no expericence in winding trafo's (neither do I have). Also SE OPT is a pain in the *** to make right. So you would have to buy...you can buy them everywhere, but iron is expensive to transport. So you may try to locate some spanish people in this forum and ask where they bought their iron...(I know of one who built a 300B SE, but used Lundahl throughout, and that is something expensive.)
Good luck
Erik
Edit: how much are you willing to spend on the whole amp?
I think the best place to ask this is at the thread where this schematic comes from. There are already some very experienced people around there, you make a bigger chance in getting answers to your questions.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=82432
As for the parts, I would go with a assembled trafo. I have read that it is difficult to source steel...and from what I understand you have no expericence in winding trafo's (neither do I have). Also SE OPT is a pain in the *** to make right. So you would have to buy...you can buy them everywhere, but iron is expensive to transport. So you may try to locate some spanish people in this forum and ask where they bought their iron...(I know of one who built a 300B SE, but used Lundahl throughout, and that is something expensive.)
Good luck
Erik
Edit: how much are you willing to spend on the whole amp?
baikostov said:
This is not a Loftin-White schematic, but a RC-coupled single ended. For Loftin-White look please:
http://www.mindspring.com/~mjh850830/loftin-white/
Andreas
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